Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/18079
Title: Schistosoma mansoni infection and related knowledge among schoolchildren in an endemic area of Minas Gerais, Brazil, prior to educational actions
Authors: Acero Cabello, Rocío Karina Saavedra
Beck, Lilian Christina Nóbrega Holsbach
Massara, Cristiano Lara
Murta, Felipe Leão Gomes
Guimarães, Ricardo J.P.S.
Pieri, Otávio Sarmento
Schall, Virginia Torres
Favre, Tereza Cristina
Affilliation: Fundação Oswaldo Cruz. Oswaldo Cruz Institute. Laboratory Environmental and Health Education. Rio de Janeiro, RJ, Brazil
Fundação Oswaldo Cruz. Oswaldo Cruz Institute. Laboratory Environmental and Health Education. Rio de Janeiro, RJ, Brazil
Fundação Oswaldo Cruz. René Rachou Research Centre. Research Group on Helminthology and Medical Malacology. Belo Horizonte, MG, Brazil
Fundação Oswaldo Cruz. Oswaldo Cruz Institute. Laboratory Environmental and Health Education. Rio de Janeiro, RJ, Brazil
Fundação Oswaldo Cruz. Evandro Chagas Institute. Laboratory of Geoprocessing. Pará, Brazil
Fundação Oswaldo Cruz. Oswaldo Cruz Institute. Laboratory Environmental and Health Education. Rio de Janeiro, RJ, Brazil
Fundação Oswaldo Cruz. René Rachou Research Centre. Group of Transdisciplinary Studies in Education on Health and Environment. Belo Horizonte, MG, Brazil
Fundação Oswaldo Cruz. Oswaldo Cruz Institute. Laboratory Environmental and Health Education. Rio de Janeiro, RJ, Brazil
Abstract: As a signatory to World Health Assembly Resolution WHA65.21 on eliminating schistosomiasis, the Brazilian Ministry of Health (MoH) recommends early identification and timely treatment of the infection carriers for morbidity control, plus complementary preventive measures, such as health education, for transmission control. This study reports infection and awareness of schistosomiasis among schoolchildren before the implementation of school-based educational actions in an endemic municipality with persisting moderate prevalence levels despite successive control campaigns since the late 1990s. A questionnaire was applied in April 2013 to schoolchildren in the middle years of schooling (6th to 8th year) of Malacacheta municipality to assess baseline knowledge and risk behaviour related to schistosomiasis. A stool survey was conducted in May/June 2013 in 2519 schoolchildren from all years of fundamental education (first to 9th year) to identify the infection carriers, as well as to assess baseline prevalence and intensity of infection using the Kato-Katz method (one sample, two slides). The infected schoolchildren were treated promptly with single-dose praziquantel 60mg/kg and followed up after 45days for treatment efficacy. Relevant outcomes from baseline stool survey, treatment and follow-up were statistically evaluated in relation to area of residence (rural/urban), gender, age group (<11/≥years) and infection. Adherence to baseline survey was 81.2%, and prevalence of infection was 21.4%. Of the 539 positives, 60 (11.1%) had ≥400 eggs per gram of faeces (heavy-intensity infection). Prevalence of infection was significantly higher among rural residents and≥11year olds, whereas intensity of infection was higher among rural residents,≥11year olds and boys. Adherence by the positives to treatment was 93.3% and adherence by the treated children to 45-day follow-up was 72.2%. At 45days after treatment, 97.0% of the 363 children surveyed were egg-negative; the egg reduction rate was 99.4%. Of the 924 children who responded to the questionnaire, 95.5% showed awareness of schistosomiasis, although 76.2% reported contact with natural, unsafe bodies of water. Reported contact with water was significantly more frequent among infected than non-infected, and boys than girls. The results show persisting infection and risk behaviour among schoolchildren, regardless of their basic knowledge about schistosomiasis. These are grounds for implementing specific educational actions to improve awareness and behavioural change, jointly with other control measures, to attain the MoH goals.
Keywords: Brazil
Health education
Schistosoma mansoni
Schistosomiasis
Schoolchildren
keywords: Brazil
educação em saúde
Esquistossomose
Issue Date: 2016
Publisher: Elsevier
Citation: ACERO-CABELLO, Rocío Karina Saavedra et al. Schistosoma mansoni infection and related knowledge among schoolchildren in an endemic area of Minas Gerais, Brazil, prior to educational actions. Acta Trop.,v. 164, p. 208-215, 2016.
DOI: 10.1016/j.actatropica.2016.09.015
ISSN: 0001-706X
Copyright: restricted access
Appears in Collections:IRR - Artigos de Periódicos

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